package com.situ.day7homework;

public class Oop {
	public static void main(String[] args) {
		Door door = new Door();
		door.alarm();
		door.close();
		door.open();
		
		Dianti dianti = new Dianti();
		dianti.alarm();
		dianti.down();
		dianti.up();
		
		Ranqi ranqi = new Ranqi();
		ranqi.alarm();
	}
}
